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Sidney Street ventilation tower - geograph.org.uk - 1000210.jpg - File Upload Bot (Magnus Manske)

Doorway, Mersey Tunnel - geograph.org.uk - 1002672.jpg - File Upload Bot (Magnus Manske)

Sidney Street Ventilating Station - geograph.org.uk - 319213.jpg - File Upload Bot (Magnus Manske)

Ventilating station, Sidney Street - geograph.org.uk - 205096.jpg - File Upload Bot (Magnus Manske)

Queensway Tunnel ventilator, Sidney Street - panoramio - IIya Kuzhekin (2).jpg - Panoramio upload bot

Queensway Tunnel ventilator, Sidney Street 4.jpg - Rodhullandemu

Queensway Tunnel ventilator, Sidney Street 1.jpg - Rodhullandemu

Queensway Tunnel ventilator, Sidney Street 3.jpg - Rodhullandemu

Queensway Tunnel ventilator, Sidney Street 2.jpg - Rodhullandemu

Queensway Tunnel ventilator, Sidney Street 5.jpg - Rodhullandemu

Sidney Street ventilator, Birkenhead 2018.jpg - Rodhullandemu